How does Redux Connect works

connect.js

function connect(mapStateToProps){
  const state = {
    currentGuess: 0,
    response: '',
    guesses: []
  };
  return function(component){
    newProps = Object.assign(
      {},
      component.props,
      mapStateToProps(state),
      { dispatch: function(){} }
    );
    return Object.assign({}, component, {props: newProps});
  }
}

var component = {
  tag: 'div',
  props: {},
  setState: function(){}
}

const mapStateToProps = state => {
  return {
    guess: state.currentGuess,
    guesses: state.guesses
  };
};

console.log(connect(mapStateToProps)(component));